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HomeKey Engineering MaterialsKey Engineering Materials Vol. 727Effect of Heat Treatment on the Microstructure of...

Effect of Heat Treatment on the Microstructure of Cu-Cr-Zr Alloy

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Abstract:

Effect of Heat treatments on microstructure in a Cu-0.71Cr-0.12Zr alloy (in wt.%) have been investigated. The microstructures are analyzed by optical microscope, scanning electron microscope, transmission electron microscope and high-resolution transmission electron microscope after each step of heat treatments. The results show that the as-cast microstructure of Cu-Cr-Zr alloy is Cu matrix, Cr dendrite and eutectic structure which is composed of Cu and Cu₅Zr phase with a fine lamellar structure. By increasing the homogenization temperature or prolonging the holding time, the eutectic structure is dissolved into the matrix gradually and the volume fraction of the Cr phases is obviously reduced. The precipitation of Cr phase prevents from Zr-rich phases dissolving in the matrix. And the proper homogenizing process is 900°C×12 h. When the alloy aged at 450°C for 24 h, the crystallography of Cr precipitates and the orientation relationship between Cr precipitates and Cu matrix is bcc structure and KS-OR, respectively. The disk-shaped precipitate is identified as Cu₅Zr phase and their habit plane is parallel to {111}_Cu plane.

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Functional Materials Research II

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Periodical:

Key Engineering Materials (Volume 727)

Pages:

166-170

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.727.166

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Online since:

January 2017

Authors:

Lijun Peng, Hao Feng Xie, Gao Lei Xu, Guo Jie Huang, Zhen Yang

Keywords:

Aging Process, Crystal Structure, Cu-Cr-Zr Alloy, Homogenization, Microstructure

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© 2017 Trans Tech Publications Ltd. All Rights Reserved

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[1] Q Liu, X Zhang, Y Ge, J Wang and J.H. Cui. Metall Mater Trans, Vol. 37A (2006) No 11, p.3233.

[2] I.S. Batra, G.K. Dey, U.D. Kulkarni and S Banerjee. J Nucl Mater, Vol. 299 (2001) No 2, p.91.

[3] U Holzwarth and H Stamn. J Nucl Matter, Vol. 279 (2000) No 1, p.31.

[4] D.J. Edwards, B.N. Singh and S Tahtinen. J Nucl Matter, Vol. 367-370 (2007) No 3, p.904.

[5] P Liu, B.X. Kang and X.G. Gao. Mater Sci Eng A, Vol. 265 (1999) No 1-2, p.262.

[6] F.X. Huang, J.S. Ma, H.L. Ning, Z.T. Geng, C Lu, S.M. Guo, X.T. Yu, T Wang, H Li and H. F. Luo. Scr Mater, Vol. 48 (2003) No 1, p.97.

[7] A Chbihi, X Sauvage and D Blavette. Acta Mater, Vol. 60 (2012) No 11, p.4575.

[8] J.H. Su, P Liu, H.J. Li, F.Z. Ren and Q.M. Dong. Mater lett, Vol. 61 (2007) No 27, p.4963.

[9] R.W. Knights and P Wilkes. Metall Trans, Vol 4 (1973) No 1, p.2389.

[10] Z Rdzawski and J Stobrawa. Scr Metall Mater, Vol 20 (1986) No 1, p.341.

[11] T Kamijo, T Furukawa and M Watanabe. Acta Metall. Mater, Vol 36 (1988) No 3, p.1763.

[12] G.C. Weatherly, P Humble and D Borland. Acta Metall Mater, Vol 27 (1979) No 4, p.1815.

[13] Y Komen and J Rezek. Metall Trans A, Vol 6 (1975) No 1, p.549.

[14] Y Jin, K Adachi, T Takeuchi and H.G. Suzuki. J Mater Sci, Vol 33 (1998) No 2, p.1333.

[15] T Fujii, H Nakazawa, M Kato and U Dahmen. Acta Mater, Vol 48 (2000) No 5, p.1033.

[16] M Hatakeyama, T Toyama, Y Nagai, M Hasekawa, M Eldrup and B.N. Singh. Mater Trans, Vol 49 (2008) No 3, p.518.

[17] M Hatakeyama, T Toyama, J Yang, Y Nagai, M Hasekawa and T Ohkubo. J Nucl Mater, Vol 386-388 (2009) p.852.

[18] I.S. Batra, G.K. Dey, U.D. Kulkarni and S Banerjee. Mater Sci Eng A, Vol 356 (2002) No 1-2, p.32.

[19] N.Y. Tang, D.N.R. Taplin and G.L. Dunlop. Mater Sci technol, Vol 1 (1985) No 4, p.270.

[20] H.F. Xie, X.J. Mi, G.J. Huang, B.D. Gao, X.Q. Yin, Y.F. Li. rare met, Vol 30 (2011) No 6, p.650.

[21] H.Q. Li, S.S. Xie, X.J. Mi and P.Y. Wu. J Mater Sci Technol, Vol 23 (2007) No 3, p.795.

[22] C Watanabe, R Monzen and K Tazaki. J Mater Sci, Vol 43 (2008) No 3, p.813.

[23] S.H. Zhou and R.E. Napolitano. Acta Mater, Vol l58 (2010) No 6, p.2186.

[24] G Wojciech, C.Z. Kai, P.C. Yuan. J Alloy Compd, Vol 509 (2011) No 3, p.8313.

[25] G Ghosh. Acta Mater, Vol 55 (2007) No 10, p.3347.

[26] T.B. Massalski. Binary alloy phase diagrams. 2nd ed. Metals Park (OH): ASM, 1987, 982.

[27] M Appello and P Fenici. Mater Sci Eng A, Vol 102 (1998) No 3, p.69.

[28] P Singh, A Lawley, S Friedman and Y.V. Murty. Mater Sci Eng A, Vol 145 (1991) No 2, p.243.

[29] Z Rdzawski and J Stobrawa. Scr Metall, Vol 20 (1986) No 3, p.341.

[30] K.J. Zeng, H Hamalainen and K Lilius. Scr Metall Mater, Vol 32 (1995) No 2, p. (2009).

[31] C Aguilar, V Martinez, J.M. Palacios, S Ordonez and O Pavez. Sci Mater, Vol 7 (2007) No 3, p.213.